Finding the Fourth Proportional to 302,477.80, 453,716.70 and 80,861.80
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Solution
The fourth proportional to 302,477.80, 453,716.70 and 80,861.80 is: 121,292.70
Step by Step Solution
- Step 1: Write the proportion equation
302,477.80 : 453,716.70 = 80,861.80 : x - Step 2: Convert to fraction form
302,477.80/453,716.70 = 80,861.80/x - Step 3: Cross multiply
302,477.80x = 453,716.70 × 80,861.80 - Step 4: Simplify right side
302,477.80x = 36,688,349,052.06 - Step 5: Solve for x
x = 36,688,349,052.06/302,477.80 - Step 6: Final answer
x = 121,292.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.